Best of luck to you in Louisville, Spence!

You are so right. IM conditioning is more mental conditioning than anything else. What prepared me for my first - Wisconsin, 2002 - was a) finishing a 50 mile trail race in May, b) my first open water swim in June c) a 2 mile swim race in July and d) two x 100 mile in July/August. When September and the race came around, I was either very mentally tough or very mentally tired - but it worked:)
Kevin